I bought a new android phone and went to my friend to get some apps installed on his phone but when he sent the apps by selecting share app feature in the menu i got only links to download the apps from playstore.
But i found a trick(or app) to do this.
1.Download AVG Antivirus from google play.(I use this)
2.Go to privacy>App backup select the apps and tap backup
3.The selected apps will be backuped in apk format in a folder (droidbackupdir)and you can share this or use in case of resinstallation.
By this you can save your GPRS data you use to download apps your friend already have.
Note:You can also use other apps for creating backup.